The present invention provides a structure of a roof rack, which includes: a base, which has one side forming a first clamping section; a fixing member, which has one side forming a second clamping section, the second clamping section and the first clamping section being arranged to correspond to and movable with respect to each other for clamping purposes; a rod, which has one end coupled to the base, the rod extending through the fixing member to project out, the rod having an opposite end coupled to an extension coupler; and a roof transverse bar, which is coupled to the base and the fixing member, the roof transverse bar having at least one coupling slot.
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1. A structure of a roof rack, comprising:
a base, which has one side forming a first clamping section, the base having an opposite side forming a position-constraining member and two channels that are symmetric with respect to each other;
a fixing member, the fixing member being mounted to the base and having one side forming a second clamping section and an opposite side forming two slide blocks respectively corresponding to the channels and slidably received in the channels, the second clamping section corresponding to and movable, together with the fixing member, with respect to the first clamping section;
a rod, which has one end coupled to the position-constraining member and constrained in the base, the rod extending through and projecting outside the fixing member, the rod having an opposite end forming a thread and extending through an elastic element and a nut;
an extension coupler, the extension coupler comprising a bearing block, at least one movable stop block, a first stop section, and a second stop section, the bearing block having a position-constraining hole formed therein, the bearing block and the nut being fit over the end of the rod that has the thread, the position-constraining hole receiving the nut therein, the bearing block movably bearing the movable stop block, the first stop section retaining the bearing block in position, the elastic element having two ends respectively supported on the second stop section and the bearing block; and
a roof transverse bar, which is coupled to the base and the fixing member, the roof transverse bar having at least one coupling slot, the coupling slot corresponding to and coupled to the extension coupler, wherein when the rod is rotated in a given direction, the rod drives the nut to rotate and the nut drives the bearing block to move, whereby the bearing block is born by the elastic element and drives the extension coupler to move and the extension coupler drives the fixing member to move in a direction toward the base, so that when the fixing member gets into contact with the base, the rotation of the rod causes the bearing block to move toward the first stop section and the bearing block compresses the elastic element and forces the movable stop block to project out of a side of the extension coupler to tightly engage the coupling slot.
2. The structure of the roof rack as claimed in
4. The structure of the roof rack as claimed in
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The present invention relates to a structure of a roof rack, and in particular to a structure of a roof rack for carrying a roof box, luggage tray, luggage carrier, a bicycle rack, a kayak holder, a snowboard rack, or a ski rack, which achieves easy attaching and detaching a roof transverse bar to/from a roof longitudinal bar by means of the rotation of a rod.
A conventional structure of a roof rack is generally made up of a plurality of longitudinal bar and a plurality of transverse bars. The longitudinal bars are respectively mounted to and extending along opposite sides of a car roof. The transverse bars extend between and are fixed to the longitudinal bars on the two sides of the car roof. The combined arrangement of the longitudinal bars and transverse bars allows a roof box, luggage tray, luggage carrier, a bicycle rack, a kayak holder, a snowboard rack, or a ski rack to be positioned on the car roof.
Taiwan Utility Model M267119 discloses a locking structure of a roof rack structure, wherein a coupling base and a coupling board are both provided with clamping sections. The clamping section of the coupling base has a top portion in which a channel is formed. The channel functions to receive and retain a transverse bar. Formed under the channel is an insertion slot for receiving an insertion tab of the coupling board to be fit therein. A bolt is screwed through the coupling board and coupling base to allow them to be attached to a longitudinal bar by means of the clamping sections. A top end of the clamping section of the coupling board is arranged to form the insertion tab, while a bottom end comprises a threaded hole formed therein to receive the bolt to extend therethrough, whereby when the clamping sections are used to couple to the longitudinal bar, the bolt is set through and coupling base and is screwed to the coupling board to have the coupling base and the coupling board attached to the longitudinal bar. An end of the transverse bar is fit into the channel of the coupling base. Screws are then put through the coupling seat to screw into the transverse bar to have the transverse bar fixed to the longitudinal bar.
Such a known structure of a roof rack has the following disadvantages:
(1) The assembling is complicated. Bolts and screws that are different must be respectively applied to secure the longitudinal bar and the transverse bar. Such an assembling operation requires a great number of different bolts/screws to complete securing and fixing. In addition, a detaching operation is thus also complicated.
(2) The assembling or detaching operation is extremely time-consuming. Due to the complicated process of assembling, a great amount of time is necessary for attaching or detaching.
Thus, the present invention aims to provide a structure of a roof rack, which can effectively reduce the amount of time necessary for assembling and detaching and can achieve easy attaching and detaching of a roof transverse bar to a roof longitudinal bar through rotation of the bars.
An object of the present invention is to provide a structure of a roof rack, which is a roof rack structure for carrying luggage thereon and can achieve easy attaching and detaching of a roof transverse bar to a roof longitudinal bar through rotation of a rod.
To achieve the above object, the present invention provides a structure of a roof rack, which comprises: a base, which has one side forming a first clamping section, the base having an opposite side forming a position-constraining member and two channels that are symmetric with respect to each other; a fixing member, the fixing member being mounted to the base and having one side forming a second clamping section and an opposite side forming two slide blocks respectively corresponding to the channels and slidably received in the channels, the second clamping section corresponding to and movable, together with the fixing member, with respect to the first clamping section; a rod, which has one end coupled to the position-constraining member and constrained in the base, the rod extending through and projecting outside the fixing member, the rod having an opposite end forming a thread and extending through an elastic element and a nut; an extension coupler, the extension coupler comprising a bearing block, at least one movable stop block, a first stop section, and a second stop section, the bearing block having a position-constraining hole formed therein, the bearing block and the nut being fit over the end of the rod that has the thread, the position-constraining hole receiving the nut therein, the bearing block movably bearing the movable stop block, the first stop section retaining the bearing block in position, the elastic element having two ends respectively supported on the second stop section and the bearing block; and a roof transverse bar, which is coupled to the base and the fixing member, the roof transverse bar having at least one coupling slot, the coupling slot corresponding to and coupled to the extension coupler, wherein when the rod is rotated in a given direction, the rod drives the nut to rotate and the nut drives the bearing block to move, whereby the bearing block is born by the elastic element and drives the extension coupler to move and the extension coupler drives the fixing member to move in a direction toward the base, so that when the fixing member gets into contact with the base, the rotation of the rod causes the bearing block to move toward the first stop section and the bearing block compresses the elastic element and forces the movable stop block to project out of a side of the extension coupler to tightly engage the coupling slot. As such, the rotation of the rod is used to achieve easy attaching and detaching of the roof transverse bar to/from a roof longitudinal bar.
The present invention will be apparent to those skilled in the art by reading the following description of preferred embodiments thereof with reference to the drawings, in which:
With reference to the drawings and in particular to
Referring to
Also referring to
Referring to
The features of the present invention will be summarized as follows:
(1) When the rod according to the present invention is rotated in the given direction, the extension coupler moves the fixing member in a direction toward the base and when the base and the fixing member get into contact with each other, the first clamping section and the second clamping section clamp and fasten a roof longitudinal bar therebetween.
(2) When the first clamping section and the second clamping section according to the present invention clamp the roof longitudinal bar therebetween already, further rotation of the rod in the given direction would cause the bearing block to move toward the first stop section, so that the bearing block compresses the elastic element and the rib of the bearing block force the movable stop block to project out of a side of the extension coupler to tightly engage and fasten the coupling slot of the roof transverse bar.
(3) The present invention takes advantage of the rotation of the rod to adjust the tightness of the first clamping section and the second clamping section clamping and fastening the roof longitudinal bar and also takes advantage of the rotation of the rod to have the bearing block moved in such a manner to cause the movable stop block to project out of the side of the extension coupler so as to couple the extension coupler and the roof transverse bar.
Although the present invention has been described with reference to the preferred embodiments thereof, it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the present invention which is intended to be defined by the appended claims.
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